<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Document</title>
</head>
<body>
  <div id="app">
    <h1>简单计算器</h1>
    <div>
      <span>数值A:</span>
      <span>
        <input type="text" v-model='a'>
      </span>
    </div>
    <div>
      <span>数值B:</span>
      <span>
        <input type="text" v-model='b'>
      </span>
    </div>
    <div>
      <button v-on:click='handle'>计算</button>
    </div>
    <div>
      <span>计算结果:</span>
      <span v-text='result'></span>
    </div>
  </div>
  <script type="text/javascript" src="js/vue.js"></script>
  <script type="text/javascript">
    /*
      简单计算器案例 
    */
    var vm = new Vue({
      el: '#app',
      data: {
        a: '',
        b: '',
        result: ''
      },
      methods: {
        handle: function(){
          // 实现计算逻辑
          this.result = parseInt(this.a) + parseInt(this.b);
        }
      }
    });
  </script>
</body>
</html>
